There has been much debate over whether the 408-foot spire atop One World Trade Center should be included in determining the height of the building (without the spire One World Trade Center stands 1,368 feet tall) or whether it is merely the equivalent of a broadcast antenna, which would allow the 1,450-feet tall Willis Tower in Chicago to continue to reign as the tallest building in the nation.

The committee determined that the structure atop the main building is deemed permanent and is part of the building’s aesthetic design; therefore, it is figured in the building’s actual height.

The 1,776 figure has symbolic importance for the tower. The tower is built on the location of the original World Trade Center and 1776 is the year of the United States Declaration of Independence. And, at 1,368 feet (the height of the building without the spire), it symbolizes the height of the original World Trade Center.

The committee making the ruling consisted of 25 industry professional members from all over the world.

In addition to standing at the tallest building in the nation, the new World Trade Center will be the third tallest building in the world, behind Dubai’s Burj Khalifa (2,717 feet tall) and Makkah Royal Clock Tower Hotel in Mecca (1,972 feet tall), according to CTBUH.